APG stocks the SH70213, an AS568-213 black Buna-N (Nitrile) 70 Shore A square profile Quad-Ring built to an inside diameter of 0.921 in (23.39 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 1.199 in (30.45 mm). A quad-ring uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.
As a material, Buna-N (Nitrile) is widely chosen for an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. This material stands up to hydraulic fluids, water, and many alcohols. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Exposure to strong acids or automotive brake fluid will shorten service life.
Common environments for this compound include automotive, general industrial maintenance, and fluid power.
Stocked as SH70213 and sold individually. Unit weight is approximately 1.038 g. Check the compound against your process media, pressure and temperature before committing to a design. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
description 568-213 BUNA 70 SQUARE CUT RINGS
Actual_CS 0.139 inch (3.53 mm)
Actual_ID 0.921 inch (23.39 mm)
Actual_OD 1.199 inch (30.45 mm)
ProductCode Description O-Rings - Square/Quad - Commodity